The invention concerns a method for connection to IP communication entities (Ex,pu,, Ey,pu) via a residential gateway (PZ). It consists in registering (A) the public identity (pu) of each connected terminal associated with the network address (z) of the residential gateway, so that any message should be addressed to said residential gateway (Pz) and in transferring (B) said message to all the IP communication entities connected to the residential gateway (Pz), thus permitting each of the latter to filter (C) the message and to determine whether the message is addressed to a public identity which is assigned thereto. The invention is applicable to IP terminals managed in accordance with SIP or H323 protocol.
Legal claims defining the scope of protection, as filed with the USPTO.
1. A method for linking to an IP network, by way of a residential gateway, a plurality of IP communication entities to which are allocated respective public identities and which are able to implement a call control protocol, said IP communication entities, internal or external to the gateway, being connected to the latter, said method comprising: a prior step of registering the respective public identities of said IP communication entities, each entity's public identity being associated during registration with a network address of the gateway, in such a way that a message according to the call control protocol and addressed to said public identity is transmitted to the gateway; in the event of the receipt by the gateway of a message according to the call control protocol, a step of transferring said message from the gateway to all connected IP communication entities; and after receipt of the message by a connected IP communication entity, a step of filtering of the message by said connected IP communication entity, in the course of which the connected IP communication entity determines whether the message is addressed to the public identity allocated to it.
2. The method as claimed in claim 1 , in which the call control protocol is one of the protocols of the group comprising the SIP protocol and the H323 protocol.
3. The method as claimed in claim 2 , in which, in the case of a message according to the SIP protocol, the step of filtering the message is carried out on the basis of the content of one at least of the fields of the group comprising the field identifying the recipient of the message and the field defining the unit handling the processing of the message.
4. The method as claimed in claim 1 , in which, in the case where during the filtering step, the IP communication entity determines that the message received is addressed to the public identity allocated to it, said entity executes a processing associated with the message.
5. The method as claimed in claim 1 , in which, in the course of the prior registration step, the respective public identities of the connected entities and the network address of the associated gateway are registered in a location database, accessible to an item of routing network equipment associated with the gateway.
6. The method as claimed in claim 5 , in which, in the event of reception by the item of routing network equipment of a message to set up a call according to the call control protocol, addressed to one of the entities registered in association with the network address of the gateway, the item of routing network equipment recovers from said database the network address of the gateway, on the basis of the public identity to which the message is addressed, then transmits the message to the gateway at said recovered network address.
7. A residential gateway for linking to an IP network a plurality of IP communication entities that are able to implement a call control protocol, the gateway connected to the IP network having available a network address, said residential gateway comprising: an interface adapted to be connected to the IP network; and a module for transferring to all the IP communication entities connected to the residential gateway messages according to the call control protocol, that are received by said interface and addressed to a public identity associated with one at least of the IP communication entities connected to the residential gateway.
8. A non-transitory computer readable storage medium, having stored thereon a computer program comprising program instructions, the computer program being loadable into a data-processing unit of a residential gateway and adapted to control the transferring by the residential gateway of a message according to a call control protocol, received by said residential gateway and addressed to a public identity associated with at least one of IP communication entities connected to the residential gateway, to all the IP communication entities connected to the residential gateway, when it is executed by the data-processing unit.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
December 21, 2006
November 4, 2014
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